package com.yan.iftest;

/*
    辅助记忆
    关键字    内存     取值范围
    byte      1        [-128,127]
    short     2        正负三万多
    int       4        正负21亿多
    long      8        很大
    float     4        小数点后7位
    double    8        小数点后14位
    char      2        [0,65535]
    boolean   1        true/false
 */
public class Demo7 {
    public static void main(String[] args) {
        final String NAME = "小明";
        System.out.println("NAME = " + NAME);
        final int AGE = 18;
        System.out.println("AGE = " + AGE);
        final double GRADE = 99.5;
        System.out.println("GRADE = " + GRADE);
    }

}
